Statements (S) : Non-disjunction is the failure of paired chromosomes to segregate during the metaphase of meiotic divisions of gametogenesis. Reasons (R) : Non-disjunction results in production of abnormal gametes

The correct answer is

(1) Both (S) and (R) are true, but (R) is not a correct explanation to (S).

(2) (S) is true, but (R) is not correct

(3) (S) is not correct, but (R) is true

(4) Both (S) and (R) are true, and (R) is a correct explanation to (S)